Chemical beneficiation has different operations according to different processes. The typical chemical beneficiation process generally includes six main operations such as preparation. (1) Preparation The operation is the same as the physical beneficiation method, including the processing of crushing and sieving, grinding and grading, and mixing of ingredients. The purpose is to break the material to a certain particle size, prepare suitable fineness and concentration for the next operation, and sometimes use physical beneficiation method to remove some harmful impurities or pre-enrich the target mineral, so that the mineral raw materials and chemical reagents are mixed. Mix well. If it is treated by fire, it is sometimes necessary to dry or sinter the material to create favorable conditions for the next job. (2) Calcination The purpose of roasting is to change the chemical composition of the ore or to remove harmful impurities, and to change the target mineral (component) into a form that is easy to leach or facilitate physical beneficiation, and prepare conditions for the next operation. The calcined products include calcined sand, dry dust, wet dust collecting liquid and mud, and the useful components can be recovered according to the composition and properties thereof. (3) Leaching operation This operation is based on the nature of the raw materials and the process requirements, so that the useful components or impurity components are selectively dissolved in the leaching solvent, thereby separating the useful components from the impurity components or separating the useful components. , creating conditions for the recovery of useful components from the leachate or leach residue for the next step. (4) Solid-liquid separation operation This is the same as the dewatering operation of physical beneficiation products. However, the solid-liquid separation of chemical ore leaching slurry is more difficult. Generally, the leaching slurry is treated by sedimentation, filtration and classification to obtain the next A clear solution for the work process or a solution containing a small amount of fine ore particles. (5) Purification operation In order to obtain a high-grade chemical concentrate, the leachate is subjected to purification and separation by a chemical precipitation method, an ion exchange method, a solvent extraction method, or the like to remove impurities, thereby obtaining a purification solution having a high useful component. (6) Preparation of chemical concentrates to extract useful work metal (component) obtained from the leachate chemical concentrate, generally by chemical precipitation method, a metal replacement method, electrodeposition method, carbon adsorption, ion exchange or solvent extraction Law; in some cases, physical beneficiation can also be used. The principle flow of a typical chemical beneficiation can be represented by Figure 7-1. Piston Pin Clip,Piston Wrist Pin,Floating Wrist Pin,Engine Piston Pin KINCON POWER TECHNOLOGY CO.,LTD , https://www.kinconparts.com